# Fleet Server - Duplicate key

**URL:** <https://discuss.elastic.co/t/fleet-server-duplicate-key/313896>\
**Category:** Elastic Agent\
**Created:** [September 7, 2022, 2:31pm UTC](https://discuss.elastic.co/t/fleet-server-duplicate-key/313896 "2022-09-07T14:31:09Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![el-jefe3](https://avatars.discourse-cdn.com/v4/letter/e/4491bb/32.png) [@el-jefe3](https://discuss.elastic.co/u/el-jefe3)\
**Post date:** [September 7, 2022, 2:31pm UTC](https://discuss.elastic.co/t/fleet-server-duplicate-key/313896/1 "2022-09-07T14:31:09Z")

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Hello everyone,

I recently configured Fleet Server on my stack. During the configuration I selected Production and entered my keys (Wildcard Certificates). These are the same ones I used for transport and have obviously just rename named them following the fleet guide instructions to convert the files back to .crt and .key.

The error is correct that the keys are the same. Is this wrong to use this key (wildcard certificates) more than once?

> **[Configure SSL/TLS for self-managed Fleet Servers | Fleet and Elastic Agent...](https://www.elastic.co/guide/en/fleet/current/secure-connections.html)**

 ![Screenshot 2022-09-07 102545](https://us1.discourse-cdn.com/elastic/original/3X/4/a/4aab6419846a313a7c82e5e8961cf614e7dacba0.png)

Error I am receiving  
[elastic\_agent][error] failed to retrieve output config from current state: duplicate key accessing 'ssl.certificate\_authorities'

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [October 5, 2022, 2:32pm UTC](https://discuss.elastic.co/t/fleet-server-duplicate-key/313896/2 "2022-10-05T14:32:07Z")

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